Bushing press



March 5, 1929.v w, J, pARKlNSQN 1,704,442

Filed April 5, 1924 x15 A TTORNEY Patented Mar. 5, 1929.

UNITED STATE.

lATENT GFFICE.

WILLIAM J. PARKINSON, OF ROCHESTER, NEXV YORK.

BUSHING PRESS.

Application led April 3,

This Yention relates to hand tools or presses for inserting and removingbushings, one object of the invention .being to provide an etlicient implement of this variety having a practical and self contained construction operating in a convenient manner to facilitate quick and easy removal of an old bushing from a bearing and the insertion of a new one. A further object is to provide a tool of this character particularly adapted for use With the bushings offspring supporti g means of automobile bodies and applicable moreover to a variety of sizes of bushings.

To these and other ends the invention re sides in certain iin} n oren ents and combinations of parts all as Will be hereinafter more fully described, the novel features being pointed out in the claims at the end the specilication.

In the drawings:

Figure 1 is a view of an implement embodying the present invention, showing the parts compactly arranged for packaging and shipment.

Figure 2 is a similar view, but with some of the parts in sections and illustrating a step in the actual. use thereof. n

Figure 3 is a` fragmentary new similar to Figure 2 showing a further step in the use of the parts.

Figure 4 is a sectional View on line 11s-4iL Figure 3; and n Figure 5 is a sectional view on the line .5U-5 in Figure 1.

Similar reference numerals throughout the several views indicate the same parts.

The preferred embodiment of the invention herein disclosed by Way of illustration comprises a frame 10 in the shape of an elongated loop which may be readily formed in manufacture as a casting or forging. The opposite en of the loop arecnlarged as shown to provide bosses l1 and 12, respectively, to afford a substantial body metal at cach of these portions. The boss 1l has i. threaded bore 13 formed therethrough in which is threadedly engageffl an arbor 14 provided at its outer' end with means for turning the same, as for example the angular head 15. The inner end of the arbor is formed as at 16 with a reduced portion the purpose of which is explained hereafter. It is to be noted that the frame has a substantial length, as does also arbor 14 for 1924. Serial No. 703,871.

the purpose of accommodating bearings and bu'hings of various lengths.

The bi 12 at the opposite end of the frame has an opening 17 therethrough in alignment with the arbor, Which opening is larger than and adapted to receive the bushings to be extracted. This opening terminates at its inner end in a circular anvil or shoulder formed in the present instance by a hardened steel ring 18 having an inner diame r adapted to receive and support the tailiering ends of the bearings With Which the tool is intended to be used, as illustrated in lligure 2. The specific bearing 19 shown in the latter is the perch7 or spring shackle support employed in various makes of automobiles, the bushing to be extracted being shown at 20. The tool frame is applied to the bearing 19 so that the end of the latter is received in and supported by the end of ring 18 into which it enters for a slight distance and by which it is centered and held.

The reduced end 16 of the arbor is adapted to lit closely in one size of bushing for Which the tool is intended, with the shoulder 16a at the end of the thread engaged With the bushing'end, to force the bushing out of the bearing by turning and advancing the arbor While the bearing is held by the anvil ring 18. The arbor 14 is furthermore equipped With a plurality of adapters or tips 21 and 22 of different sizes for adapting the tool for use With various sized bearings and luishings. These adapters are in the present instance similar in construction, comp-rising as in the adapter 21, a reduced end portion 23 having a shoulder 24 for engagement in the end of the bushing 20 as shown and as described above in connection With the end 16 of the arbor itself. That is to say, the reduced portion 23 is of such a diameter as to lit closely the bore of the bushing While its shoulder 24 engages the end of the latter but clears the sides of the bushing opening in the bearing 1 9. Each adapter has at its other end a socket 2.3 detachably fitting the reduced end 16 of the arbor so that all of the adapters are capable of use with the arbor selectively and interchangeably as well as for cooperation one with another in applying or removing the bushings, as the Work in hand may require.

In order to retain the adapters in association with the tool so as to be at all times conveniently Within reach and to prevent displacement and loss of the saine, there provided for each adapter a lexible elcinent7 in the present instance chains 26 and 2T, one end of each of which is secured to a connnon link means 28 fixed, by a stud 29 to the frame.. The opposite ends of these chains are secured to the respective adapters in an ingenionsly simple manner for permitting rotation ot' the adapter in use `.vithout interference by the chains. For this purpose each adapter is forni'edat the end thereof cooperating with the arbor With a circuiniferential groove 30 in which the circular end portion 3i of the terminal link of the chain received. By this means any one of the adapters may be selected to suit the size ol the Work in hand and may be fitted to the arbor and rotated with the latter Without in terter'ence by its retaining element or chain.

Figure l shows the parts coinpactly associated for packaging and shipping. Figure 2 illustrates the use oi the tools in the initial step of extracting `an old bushing, while Figure 3 illustrates the next step ol" inserting' the new bushing 32 which is employed to simultaneously push ont the old bushing 20. The integral end 16 of the arbor and the two adapters shown together provide for thel handling ofbushings of three different sizes, but of course a still larger number of adapters inay vbe provided. The invention thus provides a practical and convenient iinpleinfe'nt With which an otherwise troublesoine operation may be quickly and easilyaccoinplished with a ininiinuin risk ot injury to the bushings and'bearings.

I claiin as iny invention:

l. A bushing press comprising a traine in the forni of a loop having in one end thereof` a. threaded bore and in the other end a bushing receiving opening with a circniarinner end shoulder' adapted to receive and support a bearing.A an arbor threadedly engaged in said bore, a rdetachable adapter for the end of said arbor having a reduced portion for insertion in a bushing and a shoulder 'for engagement 'with the end of the bushing and also having a groove torined therein and 'a flexible retaining ineniber [tor the adapter having one end surroundi ng the latter with the groove and the other secured to the traine.

2. A bushing press comprising a lraine in the iorni or' an elongated loop havingr in one end thereof a threaded bore and in the opposite end a bushing receiving opening with a circular innerl end shoulder adapted to receive and support a bearing, an arbor threadedly engaged in said bore, a detachable adapter 'for the end of said arbor having a reduced portion for insertion in a bushing and a shoulder for engagement with the end of the bushing, and a ilexible retaining connection for the adaptor secured to said traine and includingl a part rotatably secured to said adapter and cooperating with the traine to prevent `winding oit the connection about the arbor.

A bushing press comprising a traine having a threaded portion in one end there of and having its opposite end constructed to receive a bearing or the like having anv oaening therein7 an arbor threaded in said portieri7 an adapter at one end of said arbor arranged for longitudinal inweinent Vby the arbor in alineinent With the opening olt said bearing when the latter is held at a prcdetcrn'iined position upon the frame whereby toiiorce bushings or the like into or from said bearing and a retaining device for the adapter comprising a flexible element connected with the traine and carrying a part adapted to rotate upon and to project laterally from the adapter into engagement With the traine and arranged to be held against rotation by the traine when the adapter is in oper ting position.

el. fr bushing press coin-prising a raine having a threaded portion in one end 'thereof and having its opposite end constructed to receive a bearing or the likehaving an opening therein, an arbor threaded in said portion, an adapter at one end of said arbor arranged for longitudinal nioveinent by the arbor in alineinent with the opening of said bearing when the latter is held at a predetermined position upon the traine Whereby to torce bushings or the like into or troni said bearing and a retaining eleinent `tor the adapter comprising ak part extending laterally olf the axis o1 the arbor and having a retaining portion for the adapter relativefto which the latter is arranged to rotate, the retaining element being held against rotation through engagement of said part With the frame when the adapter is in operating position.

ILLIAM J. PARKINSON. 

